I have a few too many extra Colt uppers to be buying dedicated lowers for them all. I'm having a hard time finding their original lowers anyway.
Problem is, some are mil-spec, some are large hole front pivot.
So which brand lower would you choose to humpback several uppers? One at a time of course.
Regards.
Problem is, some are mil-spec, some are large hole front pivot.
So which brand lower would you choose to humpback several uppers? One at a time of course.
Regards.
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